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31. 发明授权

US08103225B2 Multiport amplifiers in communications satellites 有权
标题翻译：通讯卫星中的多端口放大器
公开(公告)号：US08103225B2
公开(公告)日：2012-01-24
申请号：US12160980
申请日：2008-05-02
申请人： Alan David Couchman , Daryl Richard Jones
发明人： Alan David Couchman , Daryl Richard Jones
IPC分类号： H04B7/185 , H04B1/00 , H04B7/00 , H04Q11/12
CPC分类号： H03F3/602 , H03F1/0205 , H03F1/3235 , H03F1/3247 , H03F1/3282 , H03F1/345 , H03F3/68 , H03F2200/105 , H03F2200/192 , H03F2200/204 , H03F2200/451 , H03F2201/3212 , H03F2201/3218
摘要： Feedback loops are used within a Multiport Amplifier (MPA) of a communications satellite to maintain phase and amplitude tracking and hence isolation and combining performance. at Ku and Ka-bands, for which there is increasing interest in MPA applications, and where wavelengths are short and maintenance of phase/amplitude tracking becomes highly challenging. Feedback loops are located at strategic points within the MPA Output Network (ONET) to detect tracking errors and provide compensation. Errors are detected through power measurements at “null points”, with zero power corresponding to accurate tracking. The feedback loops adjust the MPA phase/gains such that the levels at these points are maintained at zero. The scheme operates with a pilot signal for measurement of nulls, injected at one of the MPA inputs.
摘要翻译：在通信卫星的多端口放大器（MPA）中使用反馈回路，以保持相位和幅度跟踪，从而保持隔离和组合性能。在Ku和Ka波段，对于MPA应用越来越感兴趣，波长短，并且相位/幅度跟踪的维护变得非常具有挑战性。反馈回路位于MPA输出网络（ONET）内的战略点，以检测跟踪误差并提供补偿。通过在“零点”处的功率测量检测到错误，零功率对应于精确跟踪。反馈回路调整MPA相位/增益，使得这些点处的电平保持在零。该方案使用用于测量零点的导频信号进行操作，在MPA输入之一处注入。

32. 发明申请

US20100222015A1 POLAR MODULATION TRANSMITTER, ADAPTIVE DISTORTION COMPENSATION PROCESSING SYSTEM, POLAR MODULATION TRANSMISSION METHOD, AND ADAPTIVE DISTORTION COMPENSATION PROCESSING METHOD 有权
标题翻译：极性调制发射机，自适应失真补偿处理系统，极性调制传输方法和自适应失真补偿处理方法
公开(公告)号：US20100222015A1
公开(公告)日：2010-09-02
申请号：US12159469
申请日：2006-12-26
申请人： Yoshito Shimizu , Tomoya Urushihara
发明人： Yoshito Shimizu , Tomoya Urushihara
IPC分类号： H04B1/02
CPC分类号： H03F3/24 , H03F1/02 , H03F1/3223 , H03F1/3229 , H03F1/3241 , H03F2200/468 , H03F2201/3212 , H04B1/0475 , H04B2001/0425
摘要： An object of the invention is to provide a polar modulation transmitter that can perform adaptive distortion compensation processing without the need for a synchronization adjustment circuit for synchronizing an input baseband signal and an output signal of a power amplifier. An adaptive operation control section 1501 measures the unbalance amount of an output spectrum of a power amplifier 1 and a coefficient adjustment determination section of the adaptive operation control section 1501 performs iteration control so that if the unbalance amount is equal to or greater than a predetermined threshold value, coefficient information output to a distortion compensation processing circuit 1301 is adjusted and an adjustment is made to distortion compensation processing in the distortion compensation processing circuit 1301 and if the unbalance amount is less than the predetermined threshold value, the coefficient information is maintained, whereby the characteristic change of the power amplifier 1 at the environmental temperature change time can be adaptively compensated for without using a synchronization adjustment circuit for synchronizing an input baseband signal and an output signal from the power amplifier 1.
摘要翻译：本发明的一个目的是提供一种能够进行自适应失真补偿处理的极性调制发射机，而不需要用于同步输入基带信号和功率放大器的输出信号的同步调整电路。自适应操作控制部分1501测量功率放大器1的输出频谱的不平衡量，并且自适应操作控制部分1501的系数调整确定部分执行迭代控制，使得如果不平衡量等于或大于预定阈值输出到失真补偿处理电路1301的系数信息被调整，并且对失真补偿处理电路1301中的失真补偿处理进行调整，并且如果不平衡量小于预定阈值，则保持系数信息，从而能够自适应地补偿功率放大器1在环境温度变化时间的特性变化，而不使用用于使输入基带信号同步的同步调整电路和来自功率放大器1的输出信号。

33. 发明授权

US07663436B2 Power amplifier with distortion compensation circuit 有权
标题翻译：具有失真补偿电路的功率放大器
公开(公告)号：US07663436B2
公开(公告)日：2010-02-16
申请号：US12000616
申请日：2007-12-14
申请人： Takeshi Takano , Yasuyuki Oishi , Toru Maniwa
发明人： Takeshi Takano , Yasuyuki Oishi , Toru Maniwa
IPC分类号： H03F1/26
CPC分类号： H03F1/3247 , H03F1/30 , H03F1/3282 , H03F2201/3209 , H03F2201/3212 , H03F2201/3224 , H03F2201/3233
摘要： A power amplifier negates a memory effect and is applied a linearizer using a digital predistortion system even in an inexpensive device. The power amplifier compares an input signal power against a sampled component of an output power, and provides predistortion to the input signal power so as to minimize a difference as a result of the comparison. The power amplifier comprises a gain lookup table storing a gain coefficient value corresponding to a temperature address determined for an input power; a phase lookup table storing a phase coefficient value corresponding to the temperature address determined for the input power; a transversal filter, which is input with the input power, and which outputs the temperature address; and a coefficient multiplier modulating the input signal using a gain coefficient value and a phase coefficient value, which correspond to the temperature address and which are read out from the gain coefficient lookup table and the phase lookup table.
摘要翻译：功率放大器消除了记忆效应，并且即使在廉价的设备中也使用数字预失真系统应用线性化。功率放大器将输入信号功率与输出功率的采样分量进行比较，并且为输入信号功率提供预失真，以便作为比较的结果使差异最小化。功率放大器包括：增益查找表，其存储对应于为输入功率确定的温度地址的增益系数值; 相位查找表，存储与为输入功率确定的温度地址对应的相位系数值; 横向滤波器，其输入有输入功率，并输出温度地址; 以及系数乘法器，其使用与所述温度地址对应并且从所述增益系数查找表和所述相位查找表读出的增益系数值和相位系数值来调制所述输入信号。

34. 发明申请

US20060261908A1 Intelligent low noise design 有权
公开(公告)号：US20060261908A1
公开(公告)日：2006-11-23
申请号：US11134546
申请日：2005-05-20
申请人： Eugene Rzyski
发明人： Eugene Rzyski
IPC分类号： H03K7/00
CPC分类号： H03F1/26 , H03F1/3223 , H03F1/3229 , H03F2200/372 , H03F2201/3212
摘要： An automated phase noise test measurement system includes a software controlled phase shifter to maintain quadrature so that a carrier may be removed from a signal provided by UUT. In this fashion, the UUT's phase noise may be measured. Based upon the UUT's measured phase noise, controllable variable(s) within the UUT are tuned so as to minimize the measured phase noise.

35. 发明申请

US20060222104A1 Feed forward amplifier system and method using the pilot frequency from a positive feedback pilot generation and detection circuit to improve second loop convergence 有权
标题翻译：前馈放大器系统和方法使用来自正反馈导频生成和检测电路的导频改善第二回路收敛
公开(公告)号：US20060222104A1
公开(公告)日：2006-10-05
申请号：US11392170
申请日：2006-03-29
申请人： Richard Braithwaite
发明人： Richard Braithwaite
IPC分类号： H04L25/49
CPC分类号： H03F1/3235 , H03F1/3241 , H03F2200/198 , H03F2201/3212 , H03F2201/3215
摘要： A pilot system and method is disclosed that increases the rate of convergence of the second loop alignment control in a feed forward amplifier. Both a pilot generation and detection system and search algorithm controlling the alignment are disclosed. By measuring the frequency of the generated pilot, phase information regarding the second loop cancellation transfer function can be inferred. Changes in the pilot frequency as the search algorithm makes steps in the second loop alignment indicate errors in the direction of the search. Using this pilot frequency measurement along with the existing log-power measurement of the residual pilot power improves the convergence speed because fewer steps will be made to reach the optimal alignment setting.
摘要翻译：公开了一种提高前馈放大器中的第二环路对准控制的收敛速度的导频系统和方法。公开了控制对准的导频生成和检测系统和搜索算法。通过测量产生的导频的频率，可以推断出关于第二循环消除传递函数的相位信息。搜索算法使第二循环对齐中的步骤的导频频率的变化表示搜索方向上的错误。使用该导频测量以及剩余导频功率的现有对数功率测量提高了收敛速度，因为将达到最佳对准设置的步骤较少。

36. 发明授权

US06734727B2 Feedforward amplifier, feedforward amplification method 有权
标题翻译：前馈放大器，前馈放大法
公开(公告)号：US06734727B2
公开(公告)日：2004-05-11
申请号：US10225222
申请日：2002-08-21
申请人： Kaoru Ishida , Naoki Takachi , Yuji Saito
发明人： Kaoru Ishida , Naoki Takachi , Yuji Saito
IPC分类号： H03F366
CPC分类号： H03F1/3229 , H03F1/3235 , H03F2201/3212
摘要： A feedforward amplifier includes a main amplifier for amplifying an input signal, a control circuit for generating a predetermined pilot signal based on the output of a local oscillator and a frequency divider included in the control circuit, and a coupler for combining the input signal or the amplified signal with the pilot signal to generate a combined signal. A first coupler and a second coupler are provided for extracting any distortion component from the combined signal. A vector adjuster, an error amplifier, and a third coupler are provided for removing the extracted distortion component from the combined signal to generate an output signal. An orthogonal detector is provided for using any one of the pilot signal, or the output of the local oscillator, the frequency divider, and the combination of the vector adjuster, error amplifier, and the third coupler to make an adjustment for removing the distortion component.
摘要翻译：前馈放大器包括用于放大输入信号的主放大器，用于基于本地振荡器的输出和包括在控制电路中的分频器产生预定导频信号的控制电路，以及用于将输入信号或放大信号与导频信号产生组合信号。提供第一耦合器和第二耦合器用于从组合信号中提取任何失真分量。提供矢量调节器，误差放大器和第三耦合器，用于从组合信号中去除提取的失真分量以产生输出信号。提供正交检测器，用于使用导频信号，本地振荡器的输出，分频器以及矢量调节器，误差放大器和第三耦合器的组合中的任何一个来进行调整以去除失真分量。

37. 发明授权

US06566945B2 Feedforward amplifier 失效
公开(公告)号：US06566945B2
公开(公告)日：2003-05-20
申请号：US10030102
申请日：2002-01-17
申请人： Masatoshi Nakayama , Kenichi Horiguchi , Yuji Sakai , Yukio Ikeda , Kazuyuki Totani , Satoshi Kunugi , Haruyasu Senda
发明人： Masatoshi Nakayama , Kenichi Horiguchi , Yuji Sakai , Yukio Ikeda , Kazuyuki Totani , Satoshi Kunugi , Haruyasu Senda
IPC分类号： H03F366
CPC分类号： H03F1/3235 , H03F2201/3212 , H03F2201/3218
摘要： A feedforward amplifier combines an input signal combined by a first error rejection loop with an error component and a first pilot signal detected by a second error detection loop, thereby canceling out the error component and the first pilot signal residual in the input signal.

38. 发明申请

US20030034834A1 Apparatus and method for controlling adaptive circuits 有权
标题翻译：用于控制自适应电路的装置和方法
公开(公告)号：US20030034834A1
公开(公告)日：2003-02-20
申请号：US10016691
申请日：2001-12-17
申请人： SOMA Networks, Inc.
发明人： James R. Blodgett
IPC分类号： H03F003/66
CPC分类号： H03F1/3235 , H03F2201/3212
摘要： An apparatus and method for operating an adaptive circuit includes injecting a set of orthogonal tracer signals into the circuit. The tracers signals are extracted after modification by at least a portion of the circuit and are examined by respective controllers to modify operation of the circuit. In one embodiment, the invention is incorporated into a feed forward amplifier where a set of orthogonal tracer signals are injected into the amplifier. A detector controller detects the orthogonal tracer signals, as modified by portions of the amplifier, and applies each tracer signal to a respective controller. Each controller examines its respective signal and modifies its output to control a portion of the amplifier accordingly. The controllers apply their outputs to the respective portions of the amplifier at substantially the same time, leading to quick convergence of the operating point of the amplifier to an optimal or near-optimal configuration. Injection of the tracer signals into the amplifier is accomplished by dithering the controller outputs by the respective orthogonal tracer signals.
摘要翻译：用于操作自适应电路的装置和方法包括将一组正交示踪器信号注入到电路中。追踪信号在修改后由电路的至少一部分提取，并被相应的控制器检查以修改电路的操作。在一个实施例中，本发明被并入前馈放大器中，其中一组正交跟踪信号被注入到放大器中。检测器控制器通过放大器的部分修改来检测正交示踪器信号，并将每个示踪器信号施加到相应的控制器。每个控制器检查其各自的信号并修改其输出以相应地控制放大器的一部分。控制器基本上同时将其输出施加到放大器的各个部分，从而使放大器的工作点快速收敛到最佳或接近最佳配置。将示踪器信号注入放大器是通过相应的正交示踪器信号使控制器输出抖动来实现的。

39. 发明授权

US06417731B1 Distortion-compensated amplifier device 有权
标题翻译：失真补偿放大器
公开(公告)号：US06417731B1
公开(公告)日：2002-07-09
申请号：US09820293
申请日：2001-03-29
申请人： Kiyoshi Funada , Junichiro Yamakawa , Junya Dosaka , Yasuo Sera
发明人： Kiyoshi Funada , Junichiro Yamakawa , Junya Dosaka , Yasuo Sera
IPC分类号： H03F126
CPC分类号： H03F1/3229 , H03F1/3247 , H03F2201/3212
摘要： Excellent compensation of the distortion is realized with a distortion-compensated amplifier device that compensates a distortion that is generated in a main amplifier, through the respective operations of a circuit comprised of a distortion-detecting loop and a distortion-compensating loop and a pre-distortor. In a distortion-detecting loop, the signal is distributed. With respect to one distribution signal, a vector adjuster (2) performs vector adjustment of it and the pre-distortor (3) generates a distortion. A main amplifier (4) amplifies this signal. The resulting amplification signal and the other distribution are composed, whereby a distortion component is detected. In a distortion-compensating loop, that amplification signal and this distortion component are composed to thereby eliminate the distortion component from the amplification signal. In a control part, a distortion component level detecting means (12) detects the levels of the distortion component that is detected. Vector adjusting/controlling means (14) and (15) controls the vector adjusting means (2) to thereby make the average value of those levels small. On the other hand, pre-distortor controlling means (16) and (17) controls the pre-distortor (3) to thereby make the peak values of those levels.
摘要翻译：通过失真补偿放大器装置来实现对失真的良好补偿，所述失真补偿放大器装置通过由失真检测环路和失真补偿环路构成的电路的相应操作来补偿主放大器中产生的失真，扭曲者在失真检测环路中，信号被分配。对于一个分配信号，向量调整器（2）执行向量调整，并且预失真器（3）产生失真。主放大器（4）放大该信号。构成所得到的放大信号和其他分布，由此检测失真分量。在失真补偿环路中，构成放大信号和失真分量，从而消除放大信号的失真分量。在控制部分中，失真分量电平检测装置（12）检测检测到的失真分量的电平。矢量调整/控制装置（14）和（15）控制矢量调节装置（2），从而使这些级别的平均值变小。另一方面，预失真器控制装置（16）和（17）控制预失真器（3），从而形成这些电平的峰值。

40. 发明授权

US06348838B1 Optimal power combining for balanced error correction amplifier 失效
标题翻译：平衡纠错放大器的最优功率组合
公开(公告)号：US06348838B1
公开(公告)日：2002-02-19
申请号：US09715587
申请日：2000-11-17
申请人： Warren Guthrie
发明人： Warren Guthrie
IPC分类号： H03F126
CPC分类号： H03F1/3229 , H03F2201/3212 , H03F2201/3215
摘要： An error correction amplifier and method of canceling distortion in an amplified signal. The error correction amplifier includes a main amplifier operable to receive a main input signal and generate an amplified signal having a main component and an error component. The error correction amplifier also includes a second amplifier coupled in a feed-forward arrangement to the main amplifier and operable to receive an input signal and to generate an output signal having a main component and an error component. A balancing network is coupled to the main amplifier and to the second amplifier. The balancing network isolates a sample of the output signal of the main amplifier, inverts the sample, and combines the sample with the input signal to the second amplifier. A summing point combines the output signal from the main amplifier and the output signal of the second amplifier in an unequal manner such that the error components of the two output signals substantially cancel one another and the main components of the output signals are added to one another. The method involves dividing an input signal into a first component and a second component; amplifying the first component of the input signal to create an output signal; sampling the output signal to create a sampled signal; combining the sampled signal and the second component of the input signal to create a combined signal; amplifying the combined signal to create a correction signal; and combining the output signal and the correction signal in an unequal combiner to create an amplified signal.
摘要翻译：纠错放大器和消除放大信号失真的方法。误差校正放大器包括主放大器，其可操作以接收主输入信号并产生具有主分量和误差分量的放大信号。误差校正放大器还包括以前馈装置耦合到主放大器的第二放大器，并且可操作以接收输入信号并产生具有主要分量和误差分量的输出信号。平衡网络耦合到主放大器和第二放大器。平衡网络隔离主放大器的输出信号的采样，将样本反相，并将采样与输入信号组合到第二放大器。求和点以不平等的方式组合来自主放大器的输出信号和第二放大器的输出信号，使得两个输出信号的误差分量基本相互抵消，输出信号的主要分量相加。该方法包括将输入信号划分成第一分量和第二分量; 放大输入信号的第一分量以产生输出信号; 对输出信号进行采样以产生采样信号; 组合采样信号和输入信号的第二分量以产生组合信号; 放大组合信号以产生校正信号; 以及在不等的组合器中组合输出信号和校正信号以产生放大的信号。

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